A brief review of compressive sensing applied to radar

In this paper we give a brief review of compressive sensing (CS) applied to radar. Though CS theory has been introduced only a few years ago (in 2006, see e. g. [1]), it today manifests as a kind of revolution in signal processing and sensor systems. We will discuss some properties of CS radar and present a few examples. It is also a concern of the author to point to some limitations and shortcomings if CS is 'blindly' applied with great enthusiasm to any radar problem. The time has come to deliberate when CS will be an advantage and when 'oldfashioned' methods should better be applied.